Lake Blanche is a salt lake in central South Australia that lies below sea level. It is located within the Strzelecki Creek Wetland System which is listed on A Directory of Important Wetlands in Australia. It also is within the extent of the Strzelecki Desert Lakes Important Bird Area, identified as such by Bird Life International because of its importance for waterbirds when holding water in the aftermath of floods.
You will be looking for a non magnetic mint tin placed in the uprights along the Mannum pipline no need to climb under or over the pipe as the cache can be easily found on approach.